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对南北两极和中低纬度山地冰芯中开展的温室气体的相关研究进行了回顾.结果显示:在1000aBP到工业革命阶段,大气中CO2,CH4和N2O等温室气体的浓度及气体稳定同位素受各种自然来源影响显著,平均含量较低,浓度波动也较小;工业革命之后,随着人类工农业等活动对环境的影响的加剧,大气中3种温室气体的含量呈现出剧烈的上升趋势.2007年IPCC第四次评估报告显示,目前CO2、CH4和N2O气体浓度的全球大气平均含量分别达到379mL·m-3、1774μL·m-3和319μL·m-3.对影响工业革命前南极、格陵兰及青藏高原冰芯中温室气体的含量的因素总结发现,由于受不同的温度、杂质含量等条件的影响,温室气体含量区域差异较大.1800A.D.以前,格陵兰冰芯中CO2的含量较南极冰芯高出9mL·m-3,青藏高原达索普冰芯CH4平均含量较南极和格陵兰冰盖高出15%~20%,格陵兰冰芯中的N2O含量也明显高于南极冰芯.工业革命以后,冰芯中3种气体浓度表现出强烈的上升趋势,并均达到1000A.D.以来的最高值.
A review of the studies on greenhouse gases in the ice cores at the northern and southern poles and in the middle and low latitudes shows that during the period from 1000a BP to the industrial revolution, the concentration of greenhouse gases such as CO2, CH4 and N2O in the atmosphere and the stable gas isotopes The natural sources have a significant impact, the average content is low and the concentration fluctuation is also small. After the industrial revolution, with the aggravating environmental impact of human activities such as agriculture and industry, the content of three kinds of greenhouse gases in the atmosphere shows a sharp upward trend. According to the fourth IPCC assessment report in 2007, the average global atmospheric CO2, CH4 and N2O concentrations reached 379 mL · m-3, 1774 μL · m-3 and 319 μL · m-3, respectively, Greenland and the Qinghai-Tibet Plateau ice core content of greenhouse gases Summary of factors found that due to the different temperature, impurity content and other conditions, the larger differences in greenhouse gas content area .1800A.D ago, Greenland ice core CO2 content Compared with the Antarctic ice core, the average content of CH4 in Dasuopu ice core is 15% -20% higher than that in the Antarctic ice core, and the N2O content in the Greenland ice core is also significantly higher than that in the Antarctic ice The highest value. After the Industrial Revolution, the concentration of the gas in three kinds of ice cores show a strong upward trend, and reached 1000A.D. Since.